Operating mechanism for elevator-doors.



K. mssa'n. OPERATING KEGHAKISE P08 ELEVATOR D0038.

APPLIOILTIOI FILED HA1. 7, 1908.

937,696. Patented 0ct.19,1909.

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P. K. FASSETT. ormu'rnm unommsu r011 ELEVATOR D0088.

APPLICATION TILED IAB. 7, 1908.

Patented Oct. 19, 1909.

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F. K. FASSETT.

OPERATING MECHANISM FOB. ELEVATOR DOORS.

APPLIOATIOI rum) In. 1, 1908.

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Witnwsas \nvanhor: EY'EHGIS K. Faaseth YMMI/W Jr 8W M UNITED s'rArrns PATENT OFFICE.

FRANCIS K. FASSETT, OF DAYTON, OHIO, ASSIGNOR, BY MESNE ASSIGNMENTS, T0 ELEVATOR SUPPLY AND REPAIR COMPANY, OF CHICAGO, ILLINOIS, A CORPORATION OF ILLINOIS.

OPERATING MECHANISM FOR ELEVATOR-DOORS.

Specification of Letters Patent.

Application filed March 7, 1908.

Patented Oct. 19, 1909. Serial No. 419,816.

To all whom it may concern:

lie it known that l, FRANCIS K. l lissn'rr, a citizen of the United States, residing; at Dayton, Ohio, have invented a certain new and useful lni rovement in Operating 'Mechanism for *lev ator-Doors, of which the following is a full, clear, and exact description, such as will enable others skilled in the art to which it appertains to make and use. the same, reference being had to the accompanying drawings, forming part of this specification, in which Figure 1 is an elevational view showing a door closing an 0 inning in an elevator shaft and my improved mechanism for operating said door, the door being closed; Fin. 2 is a view similar to Fig. 1 showing the door in its open position; Fig. 3 is a front elevation of my improved door-operating mechanism; Fig. 4 is an ,end elevation, partly in section, of the mechanism shown in Fig 3; Fig. 5. is a horizontal cross sectional view .of the mechanism shown in Fig. 3; Fig. 6 is a rear clevational view of the meehanismshown in Fig. 3; and Fig. 7 is'a detail sectional view taken on the line 7-7 of Fig. (i. I

This invention relates to mechanism for operating elevator doors, and has for itsof an oscillating device provided with anarm that is connected to the elevator door. a constantly "rotating shaft provided with clutch members, and mean.- for causing the clutch members on the shaft to engage said oscillating: device so as to actuate it. for openin and closing the elevator door.

in the n'efcrred form of my invention as herein shllwn, the. oscillating device consists of a wheel provided with a flaunt-that co operates with friction drive members on the constantly rotating shaft. one of said drive members turning the wheel in one direction to open the door and the other drive member turning the wheel in the opposite direction to close the door. The wheel is moved into and out of engagement with said friction dirive members by mechanism actuated by a s we on the elevator cage, said shoe being manually operated by the. elevator con ductor inside of t'hecage. Means are pro vided' for locking the wheel so as to hold the door in open or closed position, and means are also provided for automatically disengaging the wheel from its locking means so that the door can be opened and closed manually in case the constantly rotatim; shaft should be idle.

Referring to the drawings which illustrate the preferred form of my invention, A designates one floor of a building and B designates a sliding door that. closes an opening in the elevator shaft. The mechanism for opening and closing said door consists of an oscillating member herein shown as a wheel 1 provided with a ri id arm 2 that has a sliding connection with the door, the arm 2 having a pin or projec tion at its outer end that enters an elongated loop 3 on the rear edge of the door, as shown in Figs. 1 and 2. The oscillating wheel 1 is journaled in a bearing t that is reciprocatmgly wanted in a frame or support 5 secured o the ilo ir, and means are provided foroscillatinu'gfiiid wheel 1 so that the arm -2 will move the door into its open and closed positions.

The means herein shown for mechanically oscillatingthe wheel 1 comprises a constantly rotating shaft 6 that extends vertically through the several floors of the building and which is )rovided with friction drive members 7 and 7 that are adapted to cooperate with a friction surface on the wheel 1, said shaft 6 being driven continuously by some suitable means, not shown, such, for cxan'iple, as a motor located in the basement of the building. The friction drive member 7 on the. shaft 6 causes the wheel I to turn in the direction indicated by tln arrow in Fig. 1 to open the door, said \vhccl normally occupying such a position that its friction surface is out of engagement with said friction drive member.

The hear-inc 4 on which the wheel 1 is jonrnaled is moved vertically to carry the friction surface on said wheel into engagement. with the friction drive member 7 on the shaft 6 by means of a lever 8 pivotally connected at 9 to said hearing and provided at its lower end with a roller 10 which is engaged by an actuating shoe 11 on the elevator cage, said actuating shoe being shown in dotted lines in Figs. 1 and 2. The actusting shoe 11 forms no part of my present invention and I have therefore not shown the mechanism that is em loyed for operat ing it. Sullice it to say, t at said shoe 111s moved by mechanism under control of the 'operator or condu'ctor in the elevator cage so that when the: age approaches the floor at which it is to the shoe 1]. will be in position to engagejt e roller on the lever 8 and thus actuate said lever to move the hearing 4 u wardly, thereby carrying the friction sur ace on the wheel 1 into engagement with the constantly rotatin friction drive member 7 which causes sai wheel to turn in the'direction of the arrow in Fig. 1 and thus open the door. When the operator in the cage releases the mechanism that actuatesthe shoe 11, said shoe will move out of engagement with the roller on the'lever 8 and a coiled spring 12, which is connected at one end to a stationary support and at its opposite end to an arm 8* on the lever 8, will return said lever to normal position and thus move-the bearing 4 downwardly to carry the frictionsurface on the wheel 1 into engagement with the friction drive ,member 7- on the shaft 6, the rotary movement of the member 7 causing the wheel 1 41K to oscillate in the opposite direction and thus move the door into' its closed position; If the shaft 6 is idle the door can be opened and closed manually hy the conductor in the cage who actuates the shoe 11 so as-to force it into engagement with the roll on the lever 8, thereby moving the bearing 4 upwardly to disengage the wheel 1 rom locking means, hereinafter described, and also im partin a slight movement to'said wheel to carry two arm 2 out of its normal dead center position in which it acts as a lock to retain the door in its 010 position.

In Figs. 3 to 7 I have shown in detail thewheel 1 and the mechanism that causes it to oscillate, and referring to said fi res it shaft 6, the frame comprising two side ieces 5 between which the bearing 4 is sli ingly mounted on the shaft 6. At a proximately the center of said bearing is a aterally rojectin horizontalstub shaft 15 on w ich the w eel 1 is jonrnaled, as shown in Fig. 5.

The friction surface on the wheel 1 consists of a verticgllg disposed begeled flan c1- and the friction rive memberdfl and on the shaft 6 consist of cone-shaped -pulleys that f are pinned .to said shaft. #JAuxiliary coneshaped pulleys or drivemernbers'H and 17 cooperate w th the friction-drive fimbers .fand Tawswtivdydacl t oflfthe. yhepl be -theidfind provided with rolls 18 and 18 that cod erate with rolls 19 and 19f on the constant y rotating shaft 6.

As shown in Fig. 3, the friction drive.

members '2 and 7 on the constantly rotating shaft are arranged inside of the frame 5, and the rolls 19 and 19 consist of collars that are connected to said shaft at points putside of the frame 5, said friction drive members and collars operating to revent the shaft 6 from moving longitudina l In the construction herein shown the sha t 6 is formed in sections thatare connected toether by means of couplin 20, as shown in Figs. 3 and 4. The sha t to which the l pulley 17 and roll 18 are connected, 1s ourthe'heads -22 of screws 23 which atese'cured tp wings or ears on the frame 5 by means of nuts 24, thus producing a. ivotally -m0unted bearing that can be mov toward and away from the frame 5 to vary the fric 'tional 'contact between thecoiiperating drive members Tend 17 and the flan 1 on the w eel-1. Preferably, the trimmons for th bearin "21 are arran ed slightly oifcentr or to t e left ofthe bn 'tudinal: of said bearing, as shown in such a position that the roll18 is normally out of engagement with its cooperating constantly rotating roll 19 on the shaft 6.; The trunnions for the hearin 121' are arranged slightly to the right 0 the ion 'tudinal center of said hearing so that the re 18' will not enga its cotiperati roll 19' on the shaft 6 w en the bearing j for the wheell is in its elevated, position. When the wheel 1 is innormal position the'flan e '1 thereon will be arranged between the riction drive member 7 and its cofiperatingpulley 17" i 4=, so as' topermit force of gravity to hol the bearing in and out of engagement with the codperating drive members L3 and 4. No movement will be imparted to the wheel 1 at such times, however, dueto the fact that the flange 1' of the wheel has a cut-out-portion 25-111 which the membets 7 and 17 lie, as shown in Fi 7, and alsoein dotted lines in Fig. 3, men the bearing ,4 for the wheel .1 is, moved up-.

wardly; the flangel thereon will be forced into engagementwith'the friction member 7, fi'ndiils" in 031 17, the" '11 I thnltk the door into its open osition, the wheel coming to rest when t e cut-out ortion 1n the flange thereon comes into a moment with the eoiperatieg members 7 and t7. As the flange 1 on the wheel 1 is forced into enga ement with the drive member 7 and u ley 17, the bearing 21 rocks and thus Brings the cooperating rolls 18 and 19 into intimate engagement with each other so that rotary movement is imparted to the pulley 17, thereby causing'the flange ofthe wheel 1 to be gripped by tworotating members. Preferabl t 1e taper of the drive members 7, 7' an the cones or pulleys 17, 17 is so proportioned to their diameter and the bevel of the flange 1' on the wheel, is such, that the action of' the drive members and cones upon the wheel is a rolling one, the relative diameters of the rolls 19, 19 and 18, 18 also being such as to secure a rolling effect.

the cofiperating members 7' and 17.

When the lever 8 that moves the bearing} is returned to normal position by means of the spring 12, as previously described, the

flange 1 on the wheel 1 will pass out of engagement with the friction drive member 7 and its coiiperating pulley 17 and into engagement with the drive member 7" and cooperating pulle 17' at the lower end of the frame 5, there y causing the wheel 1 to be oscillated in the opposite direction so as to move the door into its closed position, the

Wheel 1 coming to rest when the cut-out portiqn25 iii the ange thereon arrives betw lefin B fulcrum on which the lever 8 turns consists of a stud or pin 26 on one of the side pieces of tho frarne 5 arranged above the arm 8 of aid lever, the spring 12 operating to hold upper edge of said arm in contact with,

d pin, and consequently forcing the bear r infi downwardly so that the flange of the w e 61 1' will normally lie between the co, i when the 'moved in the direction indicated by irow jl/ln Fig. 3, it will rock on said as a fulcrum and thus move the bear- 1 4 upwardly so as to force the flange of thewheel 1 between the cooperating drive members .7. and 17. When the wheel 1 cannotmove anyhigher, if the inward move- .smgnt ofthiilever 8 continues, said lever will alte longer rock on the pin 26, but leaving the pin 26, will rock on the pin 9 which con nects it to the bearing 4, and the pressure tending to keep the flange of= the wheelengaged with the upper driving members 7 and 17, increases in proportion to, the further movement of the lever 8. t

Lugs 27 on the frame 5 limit the upward and downward movement of the bearing 4 but sai shearing does not come intt ontaet with en ti lugs until the-door has reached its open orclosed position; namely, when the on -outportion 25 in the flange l'of the wheel 1 comes into alinement with the cooperating drive members at the top and bottom of the frame 5. Previous to this time the upward or downward movement of the bearing 4 has been limited by the flange 1 of the wheel wedging in between the coiipen atin drive members at the top or bottom of the frame :3. When the cut-out portion 25 comes into alinement with the cooperating drive members, the bearing 4 continues its upward or downward movement until arrested b the lugs 27. Owing to the beveled shape 0 the flange 1" and the corresponding taper of the coiiperating drive members, the space between the drive members will not be broad enough to admit the flange 1 after ';he bearing 4 has abutted the lugs 27, hence, it follows that the wheel 1 will be locked -'against rotary movement. The wheel 1 is guided and kept trued up by means of rollers 28 on the frame 5 that bear upon a flat surface on said wheel.

A'mcmber 29 that is slidin 1y mounted on the frame 5 is provided with a lug 30 that normally rests upon the upper edge of the bearing 4, as shown in Fig. 4, and at the upper and lower ends of said member 29 are cams 31 and 32, respectively. This member 29 and its cams 31 and 32 performs no function when the shaft 6 is rotating, for when the bearing 4 is moved upwardly, said member 29 will move with it and thus carry the ram 31 at the upper end thereof into engagement with a laterally projecting flange or collar 31 on the rotating shaft 6. 106 If the shaft (5 were at rest this collar 31' and cam 31 would 'act as a stop to limit the upward movement of the member 29 but when the shaft is rotatin the rotary movement of the collar 31 wi 1 cause the cam 31 105 io swing on its pivot and thus bring a redured portion of the cam underneath the collar so that the member 29 and bearing 4 can move upwardly far enough to force the flange on tie wheel 1 between the -dotiper- 110 ating drive members 7 and 17. When the member 29 moves u wardly the camj32 at the lower end thereofwill swing on its pivot and thus bring the high point of said cam onto a flange or (.(llltlliitlQiHl the sliaftfi, 115 located below said eam, as shown in Fig. 8. if the shaft 6 were idle said cam 32. and' collar 32 would form a stop that would provent the member .29 from moving down wardly back to normal position but when the 1 20 shaft is rotating the rotatory movement of the collar 32 will swing the cam 32 back to normal position when said vcam comes into engagement with samelt' f he lever 8 is actuated when the shaft 6 125 is idle, the bearing 4 and member. 29 will movempwardly until the cam 31 engages the flange or collar 31 on the shaft 6 but the cam will not. rock on its pivot, and the cam 32 at, tht flo'wer end of said member 29 130 will swing inwardly and rest upon the collar 32 on the shaft 6. The bearing 4 is the moved upwardly far enough to carry the flange of the wheel 1 out of engagement with the coiiperating drive members 7 and 17' but not far enough to force the fiange on the wheel between the cod crating drive members 7 and 17 so that tlie wheel is unlocked and free to rotate. As the. lever B continues to move, a log 33 on the arm 8 of said lever comes into engagement with a cotiperatin lug on an arm 34 which is pivotally mounte on the stud 26, as'sh'own in dotted lines in Fig. 3. The outer end-of said arm 34. is located underneath a lug on the .wheel 1 so that when said arm is actuated by the lug 33 'on the lever B, the free end of said arm will e age the lug 35 on the wheel and rotate said wheel far enough to carry the arm 2 off dead canton-thereby releasing the door B so that it can be opened manuall The point'on the lever 8 that enga es e stud 26 is considerably closer'to t e u 33 than pivot 9 and because of this, t e dowm war movement of the lug 33 is slight as long as the lever 8 rocks on the stud 26, but

the movement of the lug 33 becomes relatively much greater when the lever 8 rocks on the pivot 9. The distance that the wheel 1 will move upwardly when the shaft is idle before being stopped by the cam 31 engaging the flange 31, is relatively small.- ing the abote, it will be clear'that when the shaft is revolving thefiange 1 will engage the members 7 and 17 before the lug-33 engages the lever 34, while when the shaft is Idle the lug 33 will en age the lever 34: earl in the movement of t lever 8. With the arrangement and proportion of the parts when the shaft is revolving, pressure applie to the lever 8 does not act directl upon the.

e shaft is spring 12 from moving said wheel fand the bearin 4 downwardly to normal "position even w en pressure is removed from the operating lever B.

From the foregoin roller 36 on the mom I 29 acts as a sto to prevent the flange 1 on the wheel 1 rom moving into engagement with the coopen ating members 7 and 17? after the doorhas.

been opened manually, said roller retaining I the wheel 1 in its elevated positionuntil the caimllrw' The uto par es door has been closed and a cut-out portion 37 in the laterally projecting flangeon tfie "e I e ia" I wheel 1 has come into alinem Considera will be seen that the canoes dotted lines in Fig. 8, permits the wheel v1 and the bearing 4 to move downwardly so that the coiiperating members 7 and 17 can enterthe cut-out ortion 25 in the flange 1' of the wheel and-t us look it, the member 29 remaining in its elevated the shaft 6 is a ain rotated. To prevent t e arm 2 on thewheel 1 from moving to a dead center position when the door is opened manually, I have provided the wheel 1 with an inwardly projecting in 38 that is engaged by a ivotally. moun dog 39 on the frame 5 be ore the wheel has moved for enough to carry the aims 2 to a dead center position. When the shaft 6 is rotating this dog 39 is inoperative, however, because the wheel 1 occu we a higher position at such times and t e lug 38 does not en age said dog when the wheel is oscillated. or enablin the door to be opened and closed manual y even when theshaft 6 is rotating, I have provided means for holding the wheel 1 in such a position that it is not engaged b either set 'of driving members 7 and 17 or and 17. This means comprises a pawl 40 pivotally mounted on a stud 40' on the frame 5 an end with a laterally projecting flange 40". A weight 41 that is pivotally mounted on the stud 40 bears upon the flange 401 on said pawl and holds the pawl in eith of the two positions. When the weight is arranged in its normal sition, as shown in Fig. 3, it will foree'tli lower end of the pawl toward a portion of the frame 5 and thus hold the upper end of said pawl out of alinenient with one of the guide lugs 14 on the member 29. When the counterweight is swung in the direction indicated b the arrow 3 inFig. 8 it will engage the ange 40 on thy awl 40 and thus move the-lower end of .sai pawl away from theportion of the frame 5 with which it previously contacted. en the member 29 is raised the upper end of the pawl moves inwardly or toward said member 29 so .that the'lug 14 will engage said awl when the member 29 mbo'ves downwe y- Oonsequ'ently, th pawl 40 and the Tag 14 wvith-whiohjit ootiperatesfprevent the member 29 frol1i moving downwardly, to its extreme lowest position, 'thus; holding the position until desired ppsitionkand will remain in suc apositionflj lo restore the awl 40 to normal posit'ion the-counterwei t is swung into the position shown in 3 and th pawl will swin into itsnorma i? p ti time the ever 3 isrpperat ed r f: the

'beari 1 a v Having my in ntion, what provided at its lower 1 flange lon the wheel out-iifgengagement with either set of drirvin -jmembers. The a door B fean now heignove' manually to an 'transmit the rotary movement of sai a rockable door-actuating member, an arm rigidly secured to said member, a slot and pin connection between said arm arid," door, a rotating member provided with devices that are adapted to engage said door-actuating member and' move it in opposite directi'ons, andnieans for shifting said dooractuating member to move it into and out of engagement with the devices on the rtating member; substantially as described.

2. A door-operating mechanism compris ing an oscillating member, means for trans mitting the movements of said member to a door, a rotating member provided with devices' that are rigidly secured thereto and .vhich are adapted to engage said oscillating number and move it in opposite directions, and means for causing said devices to engage said oscillating member, said devices being adapted to lock said oscillating member when the door arrives in its closed and opened positions; substantially as described.

In a door-operating mechanism, an oscillating member provided with an arm that is adapted to be connected to the door, mechanical means adapted to engage said member and-move it in opposite directions, and manually-operated means for iriitially moving said actuating member to open the (tool-slightly when said mechanical means is inoperative; substantially as described.

4. In a door-operating mechanism, an actuating member, means for transmitting the movements of said member to a door, means for locking said actuating member, and manually-operated means for releasing said member from its locking means and for im- PL ting initial movement thereto; substantially as described.

In a door-operating mechanism, an oscillating member provided with an arm that is adapted to beconnected to a door, means for locking said member to retain the door in its closed position, and manually-operated means for disen 'aging said oscillating member from its loc in i as described.

'6. In a door-operating mechanismmwheel provided with a friction face, an arm carried by said wheel, said arm being ada ted to wheel to a door. a rotating shaft provided with friction drive numbers that are adapted to engage the friction face on said wheel and more it in opposite directions, devious coiip-" crating with the friction drive members on said shaft for causing them to firmly engage said wheel. and means for shifting said \lltl't'l to carry the friction face thereon into r-ng agcnu-nt with one of said drive members and its cooperating device, and thereafter into cn agcnnmt with the other drive memin! and its t'oiipctntlng device; substantii'illy as rh r'r'ibcd.

m ans and for |mpartmg movement to said member; substantially 7. In a door-operating mechanism, a wheel provided with a verticall disposed flange means for transmitting t e movements 0 said wheel to a door, a pair of friction drive members located adjacent the upper side of said wheel, a pair of friction drive members located adjacent the lower sideof said wheel, and means for shifting said wheel to cause the lian e thereon to be engaged by one set of said drive members and thereafter by the other set' of drive members, said flange being I provided with a recess into which said drive members extend when the wheel reaches certain positions and thus causes said wheel to come to rest; substantially as described.

8. In a door-operating mechanism,-awheel provided with a friction face, a rotating friction drive member located adjacent the upper side of said wheel, a rotatin friction drive member located adjacent t e lower side of said wheel, means for shiftin said wheel into and out of enga ement wit said drive, members to cause t 6 wheel to be moved first in one direction and then in the opposite direction, and a rigid arm on said wheel adapted to be connected to a door for transmitting the movementsof said wheel thereto; substantially as described.

9. In a dooroperating mechanism,-a wheel provided with a flange, a friction drive member for engaging said flange and moving the wheel in one direction, and a second friction drive member for engaging said flange and moving the wheel in the opposite direction, the fiangeonsaid wheel bein provided with a cut-out portion whic causes the wheel to come to rest when said cut-out portion comes into alinement with either of said drive member-s; substantially as described.

10. In a door-operating mechanism, a wheel provided wi-tha flange having a cutout portion therein, means for transmitting the movements of said wheel to a door, a pair offrietion drive members adapted to more the wheel in one direction and normally lying in. the cut-out portion of said flange so as to lock the wheel, a pair of fricflange of said wheel and move it in "mopposite direction, and means for shifting said wheel to force the flange thereon into mti rhate engagement with said pairs of drive members; substantially as described.

11. In a door-operating mechanism, a wheel provided with a beveled flange, a rotating. shaft provided with cone-shaped drive members, pivotally mounted bearings auxiliary conc-shaped drivemembers on sa u bearings that cooperate with the drive members on said shaft, means for shifting said wheel to force the flange thereon between one of the drive members on said shaft and its coiipcrating auxiliary drive members, and IIIIQUIIS for transmitting the movements 01 tion drive members adapted to engage the I,

drive members and cal-s wheel flan e,

26 tatin 65 lars connected tosaid shaft outside 0 said wheel to a door; substantially as da scribed.

12. In a door-operating mechanism, an oscillating actuating memberprovided with 5 a friction facefiange, rotatin bers ada tcd..to embrace sai flange and move '"Sai actuating member in opposite directions, and yielding means for maintaining the frictional enga ement between said sai' actuating member; substantially as described. 'T

18. In a door-operatin mechanism, an actuating wheel provider? with a tapered flan e, a rotating shaft provided with coniaped drive members that are adapted to engage said flange and move the wheel in opposite directions, auxiliary conical-shaped drive members cotiperating with those on said shaft to engage the opposite face of the pivotally mounted bearings in which sai auxiliar drive members are mounted, and means or adjusting said bearings; substantially as described.

14. In a door-operating mechanism, a roshaft, a a1r of conical-shaped drive mem rs onsaid shaft, collars on said shaft adjacent said .drive members, ivotally mounted bearings, shafts journaled in said bearings and provided with rolls and aux- 30 iliary cone-shaped drive members that 00- operate with the drive members and collars on said rotating shaft, an actuatin wheel rovided with ia ta cred flange, an means or shifting s d wheel to force the flange thereon into and out of engagement with said drive members and auxiliary drive members; substantially as described.

15. Ina door-o crating mechanism, an elongated frame a apted to be connected to the floor of a building, a rotating shaft mounted in bearings on said frame, coneshaped drive members secured to said shaft insideof'said frame, a wheel having a tapered flange that cooperates with said drive members and provided with an arm that is adapted to be connected to a door, a bearing reci rocatingly mounted in said frame and aving said wheel journaled thereon means for moving said bearing, and

. manually-operatedmeans for imparting ini 'tial move nt to, said wheel when said shaft is idle' su b s tantially as described.

16. in a door-0 erating.mechanism, an elongated frame a a ted to be connected to ing, a rotating shaft mounted in bearings on said frame, conesha (1 drive members secured to said'shaft inside of said frame, a. wheel having a tapered flange thatcooperates. with said drive members and provided with an arm that is adapted to be connected to a door, a bearing reei rocatingiy .mounted in said frame and thereon,

said

drive memaving said wheel journale'd means for moving said bearing oob.

- adjacent the upper and lower en 7 described.

frame, pivotally mounted bearings located s of said frame, and shafts mounted in said bearings and provided at their inner ends with coneshape'd drive members that cooperate with the drive members on the rotating shaft and at theirouter ends with rolls that cotiperate with the collars on said rotating shaft; substantially as described.

17. In a door-o crating mechanism, a wheel p'rovided wit1 an arm that is connected to a door, said arm lying on a dead center when the door is closed or opened,

' .mechanical means for oscillating said wheel to open and close the door, means 'for initially moving said wheel to partially open the door when said mechanical means is inoperative, and means whereby when the mechanical means is inoperative, the movement of the wheel is limited, to the end that said arm will not assume a dead center position when the door is open; substantially as described. a.

18. In a door-operating mechanism',;\a door-actuating memberfmechnnism for mow ing said member in opposite directions to open and close the door, said mechanism being adapted to lock said member so as to hold the door closed, and yielding meandfor holdin 4 said actuating member in position to be locked by said mechanism; substantially as described,

19. In a door-operating mechanism, a frame, a rotating shaft journaled in said frame and provided with drive members, a bearing reciprocatiugly mounted in said frame, awheel mounted upon said bearing, 'said wheel beiu adapted to be engaged and rocked by said rive members in opposite directions, an arm on the wheel for transmitting the movements of said wheel to a door, a lever connected to said bearing for moving it in one direction, a stationary support, and a spring connected to said lever and to said stationary support for moving the hearing in the opposite direction; substantially as described. r

20.. In a door-o crating mechanism, a frame, a rotating s aft journaled in said frame and provided with friction drive members','a bearing reciprocatingly mounted in said frame, a door-actuatin wheel carried by said bearing and adapte and rocked by said frictlondiive members,

and stops on said frame forf limiting] the movement of said bearing; substantia to beengaged.

21. In a dooroperating mechanism, a-

Erame, a rotatings aft journaledinsaid rame and provi ed with drive membrs',"a bearing reciproeati 1y mounted in said frame, adoor-actuating wheel carried by said bearing and adapted o be engaged and moved by said drive mem lever .piwqtaily oopnected to said bearing, a

ers, an' actuating the movements of the wheel coming loc stationary support, a sprin fastened to one and of said lever and to Bid stationary support, and a pin or stud on said frame on gaging one edge of saidlever to.form,ija

crum therefor; substantially as described.

22. In a door-operating mechanism, a frame, a rotatin shaft journaled in said frame and provided with drive members, a bearing reciprocatingly mounted in said frame, a wheel carried by said bearing and adapted to be engaged and moved by said drive men'ibers, rollers on said frame which bear upon said wheel to cause it to run true, and a rigid arm on said wheel that is adapted to be connected to a door for transmitting directly to said door; substantially as described.

23. In a door-operating mechanism, a frame, a shaft rotatabl mounted insaid frame and provided with drive members, auxiliary drive members cooperating with those on said shaft, :1 bearing reciprocatingly mounted in said frame, a door-actuatio wheel carried by said bearin 'and provided with a flange that is adapte to be engaged and moved by said cooperatin vdrive members, said than e having a cut-out portion in which one of t e drive members on the shaft and its cooperating auxiliary drive member normally lie and thus lock said wheel, a lever for elevating said bearing to move the cutout portion of the'wheeLolit-of engagement with said coo crating drive members, and an arm actuate by Said lever for, imparting initial movement to said wheel; substantially as described. i

24. In a door-operating mechanism, a rotatable shaft provided with drive members, a door-operating wheel adapted'to be.

engaged and moved in opposite directions by said drive members, means for causing said wheel to be locked when it occupies a certain tposition so as to hold the door closed, means or releasing said wheel so as to permitthe door to be opened manually, and means for Preventing said wheel from beclosed osition; substantially as described.

25. n a door operating mechanism, a frame, airotatable shaft mounted in said frame, drive me here on said shaft adjacent the uppe and 1 wer ends of said-frame, a bearing reciprocatingly mounted in said frame, a dooractuatmg wheelcarried by said beaning and adapt-ed to be enga ed and moved in OPPUSitBJilI'GCtlOHS b said drive members, means for causing sai drive members to look said'whpeel when it occupies certain positions, means for raising said bearing to, ca'rry said wheel into engagement with the drive member at the up or end of said frame and out ofcontaet wit the drive member at the'lower end of the frame that locks said wheel when the b ,aring is in its member when'the door reaches eduntil the door reaches its cause it to be engaged by the drive member at the upFer end of the frame when said ro tatable -s iaft is idle; substantially as described.

26. In a door-operating mechanism, a frame, a rotatin shaft journaled in said frame and provided with drive members, a bearing reciprocatingly mounted in said frame, a dooractuating wheel on said bearing that is adapted to be enga ed and moved by said drive members, a mem er reciprocatingly mounted on said frame and adapted to be raised by said bearing, pivotally mounted cams connected to said member, and flanges or collars on the rotating shaft that cod erate with said cams; substantiallyas escribed.

27. In a door-operating mechanism, a frame, a rotatin shaft mounted in said frame and provi ed with drive members, a

bearing reciprocatingly mounted on said' shaft, a door-actuatin wheel carried b' said bearing and adapte to be engage and moved by said drive members, a member recifrocatmgly mounted on said frame and a apted to be raised by said bearing, a sto on said member for limitin the 11 war movement of said bearing wv en ai shaft is'idle, a device on said member to holdin" itiin a raised position, and a roll ion sai' member for engaging the wheel so as to prevent said hearing from moving downwardly, one of said drive members being adapted to lock the wheel when the bearing is in its lowered position and ing provided with a cut-out portion which said wheel becomes into alinement with the roll on said its closed position; substantially as describe I 28. In a door o rating mechanism, a frame, a rotatiri shaft jo'urnaled in said frame andipyojvi ed with drive members, a bearing rec'lproeatingly mounted inside of said frame,--a door-actuatin wheel carried by said bearing and adapted to be engaged and moved in opposite directions b said drive members, means for moving Said bearing to canny the wheel first into engagement with one oflsaid drive membersand then into engagement with the,other drive member, means that holds the lwheel out of'contact with either of said drive members, and

said means ;.;substantially as described,

12b 21 manually'operated pawl coiiperating with 29. In a ,door-operating mechanism, a

door, a rotating member, a pivotally mounted door-actuating member, means for causing saidrotating member to directly engage said door-actuating member and rock it, an arm rigidly secured to said actuating memengagement with one of sai her, and a slot and pin connection between said arm and doorpgubstantially as described.

3}). In a dodr-operating mecha'iiism, a rotating friction drivemember, a rockable doonactuating member, means for causing sa d drive member to engage said door-actuating member and impart movement thereto, and means for causing said drive member to lock .said actuatin member when it reaches .acertain position; substantially as described.

31,-In an elevator door-operating mechanism, a rotating shaft provided with two;

drive members, an oscillating door-actuating member, means adapted to be operated by a deviceon the elevator cage for shiftingsaid door 'actuatin member to bring it into engagement wit one of the drive members on said shaft, means for shifting said door-ac tuating member in the opposite direction to bring it into engagement with the other drive member on the. shaft when the means first referred to is released, and means for initially moving said door-actuating member when the rotating shaft is idle; substantially as,described.

32. In a door-operatin mechanism, two drive members, a pivota y-mounted dooractuating member, manually-operated means for moving said door-actuatin member into hers, yielding means for moving said dooractuating member into engagement with the other drive member when saidmanually-operated means is released, and means for initially moving said dooractuating member when said drive members are idle; substantially as described.

33. In an elevator door-operating mechanism, a rotating drive member, a rocking door-actuating member, means cooperating directly with said door-actuatin member for looking it, and means adapte to be operated by a device on the elevator cage for shifting said door-actuating member out of engagement with. said 100 ing means" and into enga ment with saiddrive member; substantia 1y as described.

34. In a door-operating mechanism, a rotating sha-ft provided with a drive member, a 'door-actuating member, a bearing on which said door-actuating member is mounted, means for moving said bearing tolcarry the door-actuating member into engagement with said drive member which'causes the,

door to open, and means for preventing said bearing rom moving far enough to carry.

35: In an apparatus of the character. (lescribed, n door-operating mechanism, a medium for; applying power to said mechanism for moving the door, and means whereby drive mem-' r cause when the ower-applying medium is operative the oor-operating mechanism is permitted to engage same and when the powerapplying medium is inoperative, the dooroperating mechanism is prevented from engaging samc so that the door can be moved .manually; substantially as described.

36. In an apparatus of the character described, 11 door-operating mechanism, a medium for applyin power to said mechanism for moving thc whereby when the power-applying medium is operative the door-operating mechanism is permitted to engage same and when the powei applying medium is inoperative, the door-operating mechanism is prevented from movedmanually; substantially as described.

37. In an apparatus of the. character described, a door-operating mechanism, a medium for applying lower to the said mechanism for moving t re door, and means depending upon the inactivity of the powerapplying, medium whereby when the powerapplying medium is inoperative the dooroperating mechanism is automatically adjusted so the door may be moved manually; substantially as described. I

38. In an apparatus of the character described, a power-operated mechanism for doors, means for applyingpower to said mechanism to actuate same, and automatic means whereby when the power-applyin medium is inoperative the pdwer-operate mechanism is converted into a manually-op erated mec'hanismso that the door may e scribed.

39. In an apparatus of the character described, a door-o erating mechanism, means for locking the oor in a closed position, a medium for applying power to the dooroperating mechanism for moving the door, and means, whereby when the power-apply ing medium is inoperative the door-o erating mechanism is em loyed to unloc and start the door sothe; atter can be ogerated manually; substantially as describe 40. In an apparatus of the character described, a door o'perating mechanism, power" iven means for actuating sai mechanism t move the door and automatic means for preventing the power-driven means from 1nterfering' with the movements of the dooroperating mechanism when said powerdriven means is inoperative so as to ermit the door to be operated manually; su stantially'as dscribedl j 41. Ina;n apparatus of thecharacter desoribed afdooroperating mechanism, ower driven means ioractuating said'mec amsm to m ovcthe'door, and automatiome'ans for -caus i-ng ,the {door opla'rating mechanism to power-driven meahs when said poweragiumean inoperative. pbsition relati'aely to t operated manually; substantially as de-- out, and automatic. means engaging same so that the door can be driven means is idle and thus ermit the door to be operated mannaily; su stanti'aily as described.- a

42. In an apparatus of the character de-. scribed, a door-operating mechanism, poweroperated means for engaging and actuating said mechanism and also loc ing it, and aumeans whereby the power-driven means,

though operative, can e rendered ineffective except for moving the door-operating mechanism to open the door; substantially as described.

44. In an apparatus of thecharacter de scribed, a door-operating mechanism adapted to be connected to a door, a owerfdnven means for actuating said mec anism, and manually-operated means for causing said door-o eratmg mechanism to assume an abnormal condition relative to said powerdriven means, so that the door-operating mechanism will onl operate to open the door though the sald'power-driven means continues in operation; substantially as de,

scribed.

45. In an apparatus of the character de scribed, a .dooroperating mechanism, a power-driven means for actuatin said mech anism, a controlling member or causilfg said means to engage said mechanism, an means whereby when the powerdriven means is ldle the door-operating mechanism is prevented from engaging said means when the controiiing member is operated;

substantially as described.

46. In an apparatus of the character described, a power -operated mechanism for doors, aneans for applying power to said mechanism to actuate same, and means whereby when the power-applying medium is inoperative the power-operated mechanism is completely disengaged from said powerap'plying medium; substantially, as described.

47.. In an apparatus of the character described, a power-operated mechanism for doors, power driven means for actuating said mechanism to movethe door, and means for causing the door-operating mechanism to assume an inoperative position relatively to the ower-driven meansand remain complete disengaged therefrom during the time said power-driven means is idle; substantially as described.

.48. In an apparatus of the character described, a door-operating mechanism powerdriven means for; engaging and actuating said mechanism, said power-operated means being so constructed t at it locks saiddooro crating mechanism, and means for comp etely disengaging said dooroperating mechanism from sald power-operated means when said means is inoperative substantially as described.

In testimony whereof I hereunto aflix my' signature in the resence of two witnesses, thls twentyninth, ay of February 1908.

FRANCIS K. FASSETT. 

